Editing Methionine (section)

==Other uses==
<small>DL</small>-Methionine is sometimes given as a supplement to dogs; It helps reduce the chances of kidney stones in dogs. Methionine is also known to increase the urinary excretion of quinidine by acidifying the urine. Aminoglycoside antibiotics used to treat urinary tract infections work best in alkaline conditions, and urinary acidification from using methionine can reduce its effectiveness. If a dog is on a diet that acidifies the urine, methionine should not be used.<ref>Grimshaw, Jane (July 25, 2011) [https://web.archive.org/web/20140629112302/http://www.critters360.com/index.php/methionine-for-dogs-uses-and-side-effects-3841/ Methionine for Dogs uses and Side Effects]. critters360.com</ref>

Methionine is allowed as a supplement to organic poultry feed under the US certified organic program.<ref>{{Cite journal | title =Rules and Regulations |journal=Federal Register | url = http://edocket.access.gpo.gov/2011/2011-5716.htm | volume= 76|issue= 49 |date=March 14, 2011|pages =13501–13504}}</ref>

Methionine can be used as a nontoxic pesticide option against [[Papilio cresphontes|giant swallowtail]] caterpillars, which are a serious pest to orange crops.<ref>{{cite journal | vauthors = Lewis DS, Cuda JP, Stevens BR | title = A novel biorational pesticide: efficacy of methionine against ''Heraclides (Papilio) cresphontes'', a surrogate of the invasive ''Princeps (Papilio) demoleus'' (Lepidoptera: Papilionidae) | journal = Journal of Economic Entomology | volume = 104 | issue = 6 | pages = 1986–1990 | date = December 2011 | pmid = 22299361 | doi = 10.1603/ec11132 | s2cid = 45255198 | doi-access = free }}</ref>